Here is the look with lens hood: CANON's hood is noticeable large.
裝上遮光罩的樣子：

The camera used for testing is CANON T1i (500D). Focus point was set at the center of frame. Here are the test images:
我使用CANON 500D測試，對焦點設定在正中間。接下來就是測試的影像：
FOCAL LENGTH: 10mm for CANON/ 11mm for TOKINA
APERTURE: f/3.5

CENTER(100%CROP)

CORNER(100%CROP)

FOCAL LENGTH: 10mm for CANON/ 11mm for TOKINA
APERTURE: f/5.6

CENTER(100%CROP)

CORNER(100%CROP)

FOCAL LENGTH: 10mm for CANON/ 11mm for TOKINA
APERTURE: f/8.0

CENTER(100%CROP)

CORNER(100%CROP)

Both lenses are sharp at their widest focal length. However TOKNIA 11-16mm seems less sharp at aperture f/3.5.